Fig. 5From: The Tetrahymena metallothionein gene family: twenty-one new cDNAs, molecular characterization, phylogenetic study and comparative analysis of the gene expression under different abiotic stressorsSchematic representation of TmalaMTT3 gene origin from TmalaMTT4 gene duplication. 5’ and 3’ striped sections show the eliminated regions (after recombination) of both TmalaMTT4 gene copies. The red boxes in the striped sections from each TmalaMTT4 gene copy and in the TmalaMTT3 gene represent nucleotides forming the junction between both copies. Numbers indicate the nucleotide location. See the text for explanationBack to article page